Surveys have shown that several hundred billion weather forecasts are obtained by the United States public each year, and that weather news is one of the most consumed topics in the media. This indicates that the forecast provides information that is significant to the public, and that the public utilizes details associated with it to inform aspects of their life. Phoenix, Arizona is a dry, desert region that experiences a monsoon season and extreme heat. How then, does the weather forecast influence the way Phoenix residents make decisions? This paper aims to draw connections between the weather forecast, decision making, and people who live in a desert environment. To do this, a ten-minute survey was deployed through Amazon Mechanical Turk (MTurk) in which 379 respondents were targeted. The survey asks 45 multiple choice and ranking questions categorized into four sections: obtainment of the forecast, forecast variables of interest, informed decision making based on unique weather variables, and demographics. This research illuminates how residents in the Phoenix metropolitan area use the local weather forecast for decision-making on daily activities, and the main meteorological factors that drive those decisions.

The Phoenix area, is known for suburban sprawl which did not happen in isolation but was the result of many external factors. It was not just large environmental and cultural factors that changed over time, but the actual physical characteristics of sprawl that have changed from community to community over the decades. Characteristics like physical size of houses and lot size, along with changes in the residential and commercial design and building style have changed from around the 1950s to present day, with homes being larger and covering more of each parcel. These characteristics were analyzed in 21 communities in the Phoenix area that were built from 1950 to 2019 to find how these characteristics have changed over time. While the issue of sprawl will never fully go away, by learning what the characteristics are that make up the definition of sprawl, stakeholders like cities, planners, and developers will have better knowledge for planning for tomorrow.

In 1974, with a relatively young and fast-growing city in front of them, the City Council of Phoenix, Arizona charged the Phoenix Planning Commission with studying potential plans for urban form. Through the help of over 200 citizens over the next eight months, the village concept was born. Characterized by an emphasis on community-level planning, unique neighborhood character, and citizen input, the village concept plan provides an compelling lens into decentralized planning. In 1979, the Village Concept, as part of the “Phoenix Concept Plan 2000,” was officially adopted by the Phoenix City Council and has remained a component of the city’s long-range planning ever since. Each village features a core of dense commercial and residential activity, with a surrounding periphery featuring varied densities and land usage. There were nine original villages outlined in 1979. As of today, there are 15 villages. Each village has a Village Planning Committee (VPC) made up of 15 to 21 citizens, each being appointed to the committee by the Phoenix Mayor and City Council. This exploratory study was born out of an interest in the Village Planning Committees and a desire to understand their function as a mechanism for citizen participation in urban planning and urban governance. Similarly, with the rapid onset of the automobile and freeway expansion in the decades after WWII, once-insolated communities in the Valley have become connected to each other in a way that raises questions about how to maintain neighborhood’s unique character while promoting sustainable growth and expansion of the city. Phoenix’s Urban Village Model attempts to answer those questions. The efficacy of the model can be considered from two perspectives––how does it aid in making land use decisions, and how does it promote citizen participation? While there is an extensive body of literature on neighborhood councils in the United States and plentiful analysis of the merits of such models as participatory mechanisms and devices of urban planning, there is a lack of discussion of Phoenix’s Urban Village Model. This thesis aims to include Phoenix in this growing body of work.

High levels of surface ozone pollution have been shown to have adverse effects on human health and our environment. For at least the past decade, ozone concentrations in Phoenix, Arizona have been above the federal health standard, set in place by the Environmental Protection Agency. It is crucial that all factors contributing to rising tropospheric ozone levels within the Phoenix metropolitan area are analyzed to better understand this risk for future mitigation efforts. Consequently, the primary objective of this study is specifically to examine meteorological factors' influence on Phoenix’s ground level ozone by comparing days of ozone exceedances with ozone non-exceedances days over the course of 2010-2020. To carry out this research, various weather conditions for both exceedance and non-exceedance ozone days were studied using unpaired Student’s t-tests and Pearson product-moment correlation tests. The results of this study suggest that the most significant factors that are associated with the occurrence of surface ozone exceedances in Phoenix are wind speed and temperature, whereas the least significant variables are wind direction and sky conditions. This indicates that more stable synoptic conditions in which skies are clearer, allowing for higher temperatures and more stagnant air movement, are ideal for ozone production leading to an ozone exceedance. The results from this honors thesis will be useful as it will aid in greater understanding of the relationship between Phoenix’s surface ozone and weather, aiding future ozone forecasting.